<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>数据代理 01</title>

</head>
<body>
<script type="text/javascript" src="../../../public/vue.js">
    // 数据代理
    let obj ={
        x: 1
    }

    let obj2 = {
        y:2
    }

    Object.defineProperty(obj2,'x',{
        get(){
            return obj.x
        },
        set(newValue){
            obj.x = newValue
        }
    })
</script>
</body>
</html>